Docs: rename SETUP, INSTALL, CHANGES and GITEA-DESIGN to Chinese filenames

tests/docs.spec.ts

@@ -7,7 +7,7 @@ import { describe, expect, it } from 'vitest'
 const ROOT = resolve(dirname(fileURLToPath(import.meta.url)), '..')
 const NUMBERED = /^(\d{3})-[\p{L}0-9-]+\.md$/u
 const numbered = readdirSync(join(ROOT, 'docs')).filter(name => NUMBERED.test(name)).sort()
-const entries = ['README.md', 'SETUP.md']
+const entries = ['README.md', '设置.md']
 const documents = [...entries, ...readdirSync(join(ROOT, 'docs')).filter(name => name.endsWith('.md')).map(name => `docs/${name}`)]
 const read = (path: string): string => readFileSync(join(ROOT, path), 'utf8')
 function links(file: string): string[] {